--- /dev/null
+// Copyright David Abrahams 2005. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+#ifndef BOOST_PARAMETER_AUX_RESULT_OF0_DWA2005511_HPP
+# define BOOST_PARAMETER_AUX_RESULT_OF0_DWA2005511_HPP
+
+# include <boost/utility/result_of.hpp>
+
+// A metafunction returning the result of invoking a nullary function
+// object of the given type.
+
+#ifndef BOOST_NO_RESULT_OF
+
+# include <boost/utility/result_of.hpp>
+namespace boost { namespace parameter { namespace aux {
+template <class F>
+struct result_of0 : result_of<F()>
+{};
+
+}}} // namespace boost::parameter::aux_
+
+#else
+
+namespace boost { namespace parameter { namespace aux {
+template <class F>
+struct result_of0
+{
+ typedef typename F::result_type type;
+};
+
+}}} // namespace boost::parameter::aux_
+
+#endif
+
+
+#endif // BOOST_PARAMETER_AUX_RESULT_OF0_DWA2005511_HPP